> Stallman talking about the web is like a Catholic priest talking about sexual intercourse: he has no practical experience with it
Completely tangentially, its quite possible to be a Catholic priest [1], have never violated any Catholic teaching or discipline, and have practical experience with sexual intercourse. Catholic priests can't get married, and men usually can't become priests in the Latin Rite if they are currently married [2], but widowers can be ordained priests in the Latin Rite, and married men can become priests in the Eastern Rites.
And, in any case, even in theory, becoming a priest doesn't require one to never have violated teaching on this (or any other) point before so doing.
[1] in the usual sense of a "priest in a church in union with Rome", not extending that to breakaway or never-in-union churches that might have "Catholic" in their name.
[2] But there are exceptions to this rule.